[c-nsp] Feeding low bandwitdth Ethernet WAN links with Cisco6500

[Andrew Jones]

A low-end ISR router would be best for this task.

something like a 1941 perhaps.

Andrew Jones
Alphawest


-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Arie Vayner (avayner)
Sent: Monday, 29 August 2011 4:45 AM
To: Gert Doering; Cisco NSP List
Cc: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] Feeding low bandwitdth Ethernet WAN links with Cisco6500

Just to complement Gert's answer, what you could do, assuming the
Cataylst 6500 is already there, and doing other stuff, is to get a
cheaper external device (switch or router) to perform the egress
shaping/HQOS function.
I have recommended a few times to use switches such as ME3400 or more
recently ME3600 for such a task.

Arie

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Gert Doering
Sent: Sunday, August 28, 2011 21:08
To: Cisco NSP List
Cc: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] Feeding low bandwitdth Ethernet WAN links with
Cisco6500

Hi,

On Sun, Aug 28, 2011 at 02:09:08PM +0200, Cisco NSP List wrote:
> I am thinking about the best practice to feed some low bandwitdh 4 
> Mb/s Ethernet over SDH links from a Cisco 6500/Sup720 with SXI IOS.
> 
> The carrier equipment has 100Base-TX ports, does no noticable 
> queuing/shaping and aggressively drops everything over 4096 kb/s.

"Get a different carrier"?

Seriously, to make this work properly, you want egress shaping on the
ethernet links (and possibly QoS inside, but the shaping itself is
important in itself to avoid losses for short bursts), and the Sup720
can't do shaping...

gert
--
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Gert Doering - Munich, Germany
gert at greenie.muc.de
fax: +49-89-35655025
gert at net.informatik.tu-muenchen.de

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